New evidence
A duck study found that *Lactobacillus acidophilus* LA-02 boosted weight gain and feed efficiency — but the evidence comes from a single trial in birds, not humans.
This is the first solid test of this specific probiotic for growth, but with only one study on ducks and no human data yet, it’s a lead to watch — not a recommendation.
Researchers gave Lactobacillus acidophilus LA-02 to 180 Leizhou black ducks and found it increased their body weight and daily weight gain while lowering the amount of feed needed per pound of growth. The same study also noted better intestinal health, but because this is one of the first trials on this pairing, the results are intriguing but far from proven for people.
Where this fits in the evidence
This is among the first studies we've indexed on Lactobacillus acidophilus LA-02 for Improved Growth Performance — treat it as an early signal until more research accumulates.
The study
- Randomized Controlled Trial (RCT)
- n = 180
- 2026-05
- Poultry science
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.